نتایج جستجو برای: colorimetric analysis

تعداد نتایج: 2832244  

1998
Jon Yngve Hardeberg Jean-Pierre Crettez

In order to analyse paintings, specialists use many different techniques exploring different parts of the electromagnetic spectrum: near infra-red, ultra-violet, X-rays, etc. But surprisingly, the visual domain has rarely been analysed, probably because colour perception is a very complex domain, being rather difficult to analyse adequately by means of automatic techniques. Our visual sensation...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تبریز - دانشکده شیمی 1392

in the present work, a simple and sensitive method was developed for determination of morphine and heroin using gold nanoparticles as resonance rayleigh scattering (rrs) and colorimetric technique’s probe. synthesized gold nanoparticles by sodium citrate reduction method have a negative charge layer on their surfaces because of self-assembled citrate anions on their surface. binding of morphin...

Journal: :Teoriâ i Praktika Pererabotki Mâsa 2023

The colorimetric and spectral characteristics of meat their changes during the period storage were researched. It was shown that methods analysis can potentially be used to assess properties its in order define degree autolytic which occur along with histological-structural proteomic changes. work studies quality on base an array parameters a correlation between them. Considerable attention is ...

Journal: :Journal of clinical microbiology 2008
M A Pfaller V Chaturvedi D J Diekema M A Ghannoum N M Holliday S B Killian C C Knapp S A Messer A Miskov R Ramani

A commercially prepared, dried colorimetric microdilution panel (Sensititre YeastOne Trek Diagnostic Systems, Cleveland, OH) was compared in three different laboratories with the Clinical and Laboratory Standards Institute (CLSI) reference microdilution method by testing 2 quality control strains, 25 reproducibility strains, and 404 isolates of Candida spp. against anidulafungin, caspofungin, a...

Journal: :Journal of the Optical Society of America. A, Optics, image science, and vision 2005
Vien Cheung Stephen Westland Changjun Li Jon Hardeberg David Connah

We investigate methods for the recovery of reflectance spectra from the responses of trichromatic camera systems and the application of these methods to the problem of camera characterization. The recovery of reflectance from colorimetric data is an ill-posed problem, and a unique solution requires additional constraints. We introduce a novel method for reflectance recovery that finds the smoot...

Journal: :Technometrics : a journal of statistics for the physical, chemical, and engineering sciences 2015
Wenxuan Zhong Kenneth S. Suslick

With the rapid development of nano-technology, a "colorimetric sensor array" (CSA) which is referred to as an optical electronic nose has been developed for the identification of toxicants. Unlike traditional sensors which rely on a single chemical interaction, CSA can measure multiple chemical interactions by using chemo-responsive dyes. The color changes of the chemo-responsive dyes are recor...

Journal: :Journal of environmental sciences 2012
Shan Hu Jinsuo Lu Chuanyong Jing

Accurate on-site determination of arsenic (As) concentration as well as its speciation presents a great environmental challenge especially to developing countries. To meet the need of routine field monitoring, we developed a rapid colorimetric method with a wide dynamic detection range and high precision. The novel application of KMnO4 and CH4N2S as effective As(III) oxidant and As(V) reductant...

2013
I. Spiridonov M. Shopova

The main goal of this study is determination the effect of GCR (gray component replacement) levels on colorimetric characteristics of color proof. To determine the effect of GCR levels on colors of color proofs, a comparison of 2D and 3D color gamuts depending on GCR level have been performed. In addition to obtain better assessment of the effect of GCR levels on color gamut were calculate volu...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید